Early symptom?

I'm sure I'm over thinking as usual. I'm wondering if a sore throat and fever could be symptoms. I'm 7 DPO and I've been feeling tired, kind of sore throat, occasionally dizzy and nauseous, slightly sore breasts and I thought I had a fever but my head and such is just hot. It's hard to tell because this is my first cycle off the nuva ring and my doctor thinks I have endometriosis. What do you think? Am I over analyzing?